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View Full Version : Align High Performance Muffler Proble`?!


Alican
02-03-2008, 11:22 AM
Hi guys,

I know about the problem that things become loosen inside the muffler. I fitted the Align muffler on my YS 50 ST and it runs a while very POWERFULL but suddenly the engine wont run. I thought maybe that would be the bearings. Looked inside the engine and decided to buy a new YS 50 ST. So I bought the new YS50 and fitted the Align muffler again. But there is something strange. My muffler sounds really bad. I dont know how I can explain this sound but it really makes a loud GRRRRRR Like metal would touch metal:D... So I thought maybe there is loosen something inside. But if i shake the muffler with my hands I hear nothing. Could it be that something get loosen inside but is very tight so that it just began to vibrate during the heli is flying? Because I hear nothing when I just shake it with my hands. Hope you can help me :)

...Ali

brgsstm
02-04-2008, 07:54 AM
sounds more like a tuning problem than a muffler prob,

Tom

frogbmth
02-04-2008, 01:23 PM
I've seen a few posts where it sounds like something has come loose inside the muffler. Supposed to have been only with early models but I'm starting to think it's an ongoing issue.

Andy

brgsstm
02-04-2008, 01:32 PM
I've seen a few posts where it sounds like something has come loose inside the muffler. Supposed to have been only with early models but I'm starting to think it's an ongoing issue.

Andy

Hey Andy,

My Align muffler is fairly new and I have had no problems with it. Its got about 5 galons through it now and no probs (touch wood). I wonder how it will be in another 5 gallons, only time will tell.

Tom

WayneBrown
02-04-2008, 01:49 PM
check valve reversed??

frogbmth
02-04-2008, 03:20 PM
Have a look here

http://www.helifreak.com/showthread.php?t=49806

http://www.helifreak.com/showthread.php?t=55503

http://www.helifreak.com/showthread.php?t=47576

http://www.helifreak.com/showthread.php?t=50292

Alican
02-04-2008, 03:47 PM
Hi guys,

thanks for yur answers. I installed the check valve right and all other thinks are also right, I send my pipe in for replacement.

...Ali